Communigate to Zimbra - 10 Servers

Hi,

We currently have 10 Communigate server setup in the following way.

One main server (domain.com) that all mail is delivered to.

Nine remote server on VERY slow satellite links that once an hour makes an ETRN command back to our main server picking up the mail for the local server. The remote servers are local1.domain.com and so on.

In the next major release (currently scheduled for October) Zimbra will have the ability to fetch mail from remote servers on a schedule (this is a feature of individual users mailbox). That feature is available in current version but to get the mail a user has to hit refresh.

Is this an Open Source or Network Edition deployment you're talking about?